037-8 Wyo. Code R. § 8-1
a. All applications for water rights must be accompanied by maps in duplicate; one of which must be on good quality tracing linen or equivalent. Original drawings prepared on polyester base films with a minimum thickness of 0.006 inch will be acceptable. This will include Linen, Estar, Cronaflex, and Mylar drafting films* Maps accompanying original applications must be neatly drawn in either black waterproof ink or acetate ink which will print clearly. Maps on which pencil, ballpoint pen, or ink other than black, has been used, will not be acceptable. Pressure sensitive lettering and symbols or adhesive transparent acetate stick-on crosshatching are not acceptable. These materials are not sufficiently permanent and decrease the useful life of the filing maps, which are intended to be permanent records.
b. Maps to accompany enlargement applications or amendments of previous filings may be prepared by securing a duplicate original of the map already on file in the State Engineer's Office, and by making the necessary alterations and additions thereto. Duplicate originals, in order to be acceptable must be on Linen, Mylar, Estar, Cronaflex, or equivalent drafting films with a matte surface designed to accept ink and with a minimum thickness of 0.004 inch.
c. However, in the case of special applications to construct small reservoirs for stock purposes only and fishing preserve waters where the capacity of such reservoirs does not exceed 20 acre-feet or 20 feet in fill height; to develop surface water springs for stock purposes not to exceed 25 g-p.m. (0.056 CFS); and to construct flood water detention reservoirs not to exceed 50 acre-feet in capacity, 20 feet in fill height, or 20 acre-feet of inactive capacity, providing said dam has a minimum outlet of 18 inches in diameter; the application may be accompanied by a 9" x 9" aerial photograph or a 9" x 9" section of a United States Geological Survey quadrangle map. For preparation of special application maps, see Section 3 of Chapter VI, page 47.
d. Map which has been folded will not be accepted
037-8 Wyo. Code R. § 8-1