Nielsons (Well) Cave

?
Entrance
(Surface)
0
Partial Profile View
30
0
5 10
60 Feet
20 Meters
?
?
?
?
See Upper Ancient Stream
Offset Box
E6
E8
750
Nielsons
Well
Entrance Pit
Spiffy Deluxe
Pit
Upper Ancient
Stream
0 Datum
(Rigging
Tree)
?
?
-750 feet
?
(Dig)
Surface Sinkholes
Fools
Pit
?
Dentist
Office
Fantasy
Well
F15
Bear Claw
Pit
?
Bear Claw
Pit
I I I
I
I
I
(Up to
F4)
I
I9
F10
19
(Choked)
20
80
(To CP11)
(Down to I11)
F12
20
Upper Bear Claw
Pit Offset Box
Cub Pit
Lower Ancient Stream Offset Box
FB9
FB8
S1
See Upper Bear
Claw Pit Offset Box
FB7
F4
See Fantasy Well
Offset Box
CP2
620
Fantasy
Well
600
?
?
PH2
FB4
?
PH1
19
DB15
90
FB2
Pit section looking NW (black lines),
basal canyons (gray lines) looking E
DB14
DB13
?
29
8
Junction Room
Offset Box
CP15
735
Junction
Pit
Hidden
Junction
Room
45
?
9
(Down to
CP10)
?
CP13
90
TT
676
(Camp
spot)
Upper Middle Centipeed Maze
Offset Box
Ancient Stream
Dentist Office
Nuisance
Pit
800
?
FA24
F20
FA10
TT
Shimmering
Pool
F22
B13
292
Bat
Trap
I I I I I
I I I
I I
Ancient
Stream
Cascade
Falls
PH7
2
AS4
20
12
UAS14
729
B18
B19
PH11
UAS9
Upper
Ancient
Stream
PH8
AS6
19
31
24
6
743
A
SU3
SU2
?
? ET13
6
7
TT
ET14
694
26
TT
TT
ET5
?
28
18
Curious
Maze
UAS9
?
A5
UAS5
ET10
Curious
Rooms
TT
A3
SC2
22
Blind
Doline
?
SC3
242
18
A8
Nielsons Well
AS9
Far
Wall
29
Cache County, Utah
80+
(Intermittent
frozen pond)
247
V14
R1
Nasal
Cavity
39
26
Dig
V11
AS11
Obnoxious
Pit
Legend:
Bedrock
Slope (opens downslope)
Too Tight
Breakdown Wall
880
5
Ledge Height
Mud
7
Ceiling Height
Loose Sediment
Flowstone
Logs
Soda Straws
Pool
Surveyors by number of trips & amount of survey:
Dave Herron (12), Al Hinman (7), Jim Olson (7),
Rodney Mulder (6), Rod Horrocks, (5), Jim Nicholls (4),
Dave Shurtz (4), Ken Stahley (3), Mike Beer (2),
Rob Cranney (2), Paul Kemp (2), Glenn Shurtz (2),
Clair Call (2), Paul Burger (2), Steve Lester (2),
Matt Covington (1), Peter Hartley (1), Dave Dixon (1),
Ken Newton (1), Neeld Messler (1), John Stembel (1),
Steve Munson (1), Paul Cooper (1), Debbie Herron (1), &
Steve Fisher (1)
Frostwork
Ice
Breakdown
Lower level survey station
Stalagmite
Cave Wall
Ceiling Ledge
TN
MN
12
07/2010
10
20
5
0
60 Feet
30
10
Flowing water
Upper level survey station
Floor Ledge
Surveyed Length: 7,497 Feet (1.42 Miles or 2,289 m)
Vertical Relief: 880 Feet (268.2 m)
0
Depth Below 0 Datum
Underlying cave wall
Unsurveyed passage
List of Pits & Domes*:
Depth In Feet:
312’
292’
267’
100’+
100’+
100’+
88’
81’
75’
70’+
69’
60’+
60’
58’
56’
43’
42’
40’
38’
36’
33’
25’
20’
Pit Name or Description:
Nielsons Well
Fantasy Well
Parallel Well**
Mega Dome**
Goliath**
Upper Fantasy Well**
Junction Pit
Bearclaw Pit
2nd Twin Dome**
Upper Barrier Pit**
1st Twin Dome
Virgin Narrows Dome**
Blind Doline**
Spiffy Deluxe Pit
Nasal Compex
Nuisance Pit
Duplicate Dome
Dixiecup Pit
Barrier Pit
Fools Pit
Slither Pit
Third Pit
Cub Pit
* Pits that need rope
** Undropped or unclimbed pits
?
V10
Dig
AS12
TT
9
AS14
Dig
A9
AS18
V7
80
?
Nasal
Complex
Nuisance
Pit
(High
Fissure)
Plan View
V8
V5
V4
?
22
?
280
?
69
Big
Room
30
AS19
15
L6
3
Dug Open
X7
X4
TT
X8
5
?
L12
TT
80
Twin
Domes
75
C1
6
C2
39
C5
?
14
(Choke)
C4
60
AS20
C3
TT
V2
375
?
?
(Lead too
delicate too
push)
TT
1
15
880
V3
X9
X5
(Dug
Open)
A10
AS51
39
TT
3
11
1
Porcupine
skull
(Sump)
(Pure
white
flowstone)
L8
L7
L11
45
(Choke)
TT
TT
3
770
(Choke)
V9
26
L10
Wolverine
Skull
AS15
29
Dug
Open
L5
Porcupine
skeleton
55
50
265
X10
3
AS13
21
AS16
V6
Porcupine
?
skeleton
X12
TT
TT
274
A11 L3
12
30
Bone
Lead
X13
29
V12
Dead
Promise
SC5
SC8
X14
80
3
V13
TT
SC6
SC7
AS10
29
(A.K.A. Nielsons Cave)
TT
Skating
Rink
A7
ET9
Curious Room Offset
Box
Entrance
Shaft
(Eleve: 7,600 feet)
A1
AS8
AS21
65
AS50
V1
50
80
19
AS49
TT
Cascade
Hall
AS48
80+
AS22
50+
2,065’ of known pits & domes in Nielsons Well
(Wet and
?
low)
20 Meters
B
5
VR3
(Scale for plan view)
813
VR2
VR1
20
TT
872
18
Virgin
Narrows
9
?
?
AS47
?
23
?
AS23
VR4
Profile of Giants Hall, B-B’
VR5
12
?
AS46
75+
Cascade
Falls
Rock Units:
VR6
AS45
Fish Haven Dolomite: Medium to thick-bedded, dark gray dolomite, slightly metamorphosed
Swan Peak Formation: Pure, fine-grained, white quartzite with a thin layer of shale at the base
Garden City Formation: Thin bedded, fossiliferous, slabby limestone with layers of chert
15
50+
25
AS43
AS44
Virgin
River
AS42
?
Nielsons
Well
(Looking S 65 W)
VR10
12
AS25
Feet below
the 0 datum
VRA1
0
0
5
30
60 Feet
10
20 Meters
12
600
?
AS41
VRA3
?
130
AS30
Giants
Hall
45
AS29
16
AS27
25
30+
AS31
?
AS28
9
50+
400
0.5 Miles
800 Meters
Utah
(Hear water
below floor)
AS39
Brief
Delay
2X Vertical Exaggeration
0.25
650
TT
?
?
?
19
VRA4
Goliath
?
B’
AS26
817
(Tight, decorated,
goes)
?
?
AS32
?
(To Virgin
River)
AS37
8
AS36
AS35
AS33
?
822
50+
AS34
800
Goliath
?
750
8
AS38
Virgin
Narrows
Dome
700
?
?
6
Copyright 2010 by Rodney D. Horrocks
8
90
50+
0
60
?
(Horizontal and vertical
scales the same in this profile view)
VR9
VR8
VRA2
AS40
0
80+
AS24
?
Virgin
River
Nielsons
Well
City
Garden
VR7
?
By David A. Herron
eak
Swan P
(Projected Profile Looking NE)
21
30
21
Geologic Cross Section of Nielsons Well
n
Laketow
ven
Fish Ha
Virgin
Narrows
Dome
40
25
Laketown Dolomite: Massive to thick-bedded, light gray dolomite, slightly metamorphosed
ET3
ET8
0 Datum
A6
11
ET7
?
UAS3
Lower Centipeed Maze Offset Box
ET2
?
ET12 8
?
ET6
19
A2
?
23
TT
6
9
30
AS7
SU5
UAS18
25
UAS8
UAS4 24
15
SU4
15
30
UAS2
UAS1
18
TT
UAS19
UAS15
UAS11
12
AS5
TT
31
?
? (Possible
high lead)
708
717
See Curious Room
Offset Box
UAS7
14
?
15
SU1
UAS13
8
B21
TT
12
UAS8
?
19
B20
TT
lead)
SU6
28
TT
AC1
? (Tight water
15
33
(Sump)
(Down to
Upper Ancient
Stream)
UAS17
B22
PH9/10
UAS20
FA12
BackBender
150+
UAS23
B10
B11
2.5
270
30
29
Cascade
Hall
UAS22
UAS26
UAS24
UAS21
B8
ET1
UAS6
22
880
The
Alcove
(Up to
PH5)
3
?
B3
FA11
706
26
775
Bowlingball
Canyon
UAS7
UAS25
UAS6
TT
5
19
?
Third
Pit
18
B17
Lower Middle Centipeed Maze
Offset Box
B15
B16
?
UAS5
11
12
Virgin River
29
B9
B12
See Centipeed Maze Offset Box
Nasal
Cavity
36
23
5
20
12
TT
B2
6
15
?
UAS1
?
TT
9
B14
PH12
B1
B4/5
6
Spiffy
Deluxe
Pit
UAS27
UAS4
Barrier
Pit
TT
335
B7
6
?
DB6
?
1
BT1
15
4
5
?
TT
B6
AS3
?
DB4
Fools
Pit
1.5
(Sump &
Silt Plug)
AS2
(Down to
PH7)
FA3
4
270
1
816
11
PH2
PH4
TT
6
53
Hero
Hall
BC3
4
AS1
13
TT
850
21
FA1
F21
PH3
PH5
36
UAS2
259
24
368
Colorado
Crawl
4
(Down to
PH11)
Goliath
?
2
DB2/3
FA9
FA7
I28
60
BC4
19
9
?
FA6
TT
SL8
12
2
3
(Down to
PH2)
?
?
Bear Claw
Pit
PH1
?
Virgin
Narrows
Dome ?
See Junction
Room Offset Box
FA5
F19
Bear
Claw
Creek
CP6
6
TT
SP7
18
16
36
DB5
TT
10
1
F18
See Lower Level
Bear Claw Pit
Offset Box
CP7
9
8
CP12
6
Doubleback
Crack
30
FA4
F17
30
20
6
1
SP1
40
4
16
?
21
SL2
DB9
DB10
CP5
CP14
TT
28
SP4
30
?
13
DB11
18
CP4
CP11
CP10
?
I27
?
22
Duplicate
Dome Slither
Slot
Bubble
Rooms
DB12
12
?
I13
25
TT
TT
CP3
8
FB3
DDS1
17
(Too tight)
Hidden
Junction
Room
15
(Down to
PH3)
?
UAS3
?
764
TT
(Up to
CP6)
PH3
TT
CP1
699
(Up to
PH1)
Mudball
Canyon
2
CP10
I12
I11
Fantasy Well Offset Box
?
13
22
Choke
Dixiecup
(Down to
Pit F6)
F5
3
I10
634
3
S2
30 Meters
?
?
F3
Quartzite
Crawl
TT
DDS2
700
Lower Middle Ancient Stream
Offset Box
Fantasy
Well
TT
8
DDS4
Junction
Pit
I10
I26
45
4
FB5
?
(Up to I8)
TT
29
Dixiecup
Pit
43
6
FB6
?
I25
Dixiecup
Pit
?
?
I24
F11
(Down to
F14)
Lower Level Bear
Claw Pit Offset Box
2
500
Upper Middle Ancient Stream
Offset Box
I23
F6
10
727
DDS5
I7
27
4
MN
(Up to I6)
F9
(Up to
F11)
100 Feet
20
I
100+
38
10
10
F14
S4
0
I8
I
F8
DDS6
12 Degrees
2010
30 50
(Down to I9)
I
TN
Location of Big Room
0
Dixie Cup
Room I I I
80+
8
I
6
Quartzite
Crawl
Legend:
Surface Sinkhole
?
I
F7
808
(Plan View)
TT
I22
?
620
30
13
5
32
DDS7
?
I
Duplicate
Dome
Slither
Pit
734
I
TT
19
Upper
Ancient
Stream
I
?
?
Lead
29
34
I
Third
Pit
Twin
Domes
Suunto Compass, Clinometer, & Fiberglass Tape Survey
from 5/16/1987 - 10/14/2007
Data Processed Using CavePlot & COMPASS
Map Drawn By Rodney D. Horrocks, 5/26/03,
updated 7/30/2010 using llustrator CS4
I18
I20
(To Bowlingball
Canyon)
E14
DDS8
?
15
14
E13
TT
?
TT
TT
I15
I16
I17
I21
?
Surveyed started by Jim Nicholls & Ken Stahley on 5/16/1987
31
?
Mudball
Canyon
(To Sump)
E16
First Descent of Nielsons Well in March 1985 by Lynn Nelson
& Bruce Parker
I3
I4
I19
TT
400
7
I14
(To Ancient
Stream)
Big
Room
Barrier
Pit
Bat
Trap
I6
2
?
700
Blind
Dolline
?
12
(Down to I7)
?
E7
TT
TT
300
20 Meters
Mega
Dome
4
I5
?
?
Big
Room
10
?
?
Looking NW (upper black lines), looking E (lower gray lines)
0
60 Feet
I2
?
650
(Horizontal and vertical
scales the same in profile view)
200
?
10
Projected View
Nielsons
Well
5
0
30
Mega
Dome
?
(Horizontal and vertical
scales the same in this profile view)
600
Parallel
Well
-550 feet
SS9
0 Datum
100
100+
(Projected Profile Looking NW)
550
SS8
0
Profile of Upper Ancient Stream, A-A’
I I
I I
I I
Feet
Elevation:
7,600 Feet
Feet below
the 0 datum
A’
I1
?
Virgin Narrows
Giants Hall