There was certainly arrow shaft material within the range of all Plains tribes. As Newindian describes, these folks could and would travel far and wide. It was common for Kiowa and Comanche raiding parties to go deep into Mexico. There are even several stories of war parties going as far as South America. They were not nearly as restricted in their movement as we are today. They didn't worry about cutting on private, or federal property, etc. Chokecherry, red osier dogwood, rough-leaf dogwood, current and even plum were available along various waterways that ran through the Plains. As Patrick mentions, there were also reed shafts that were being made in some of the marginal areas of the Plains. I make most of my shafts from rough-leaf dogwood. It is easy to find in my area. I have also made some phragmites shafts. I have a Cheyenne friend in Oklahoma that uses the same type of dogwood, but also uses chokecherry. A friend in Southwest Kansas makes his exclusively from chokecherry, because that is all he has around him. He has to drive an hour to collect shafts, but this is right in the middle of an area that was heavily travelled by Cheyenne, Arapaho, Kiowa and Comanche people. Travelling farther to the east, still in Kansas, another friend has used a type of wild plum for shafts. None of the plum in my area would make a shaft, but his is a different type of plum and works quite well. Further north, red osier was used, which is a different type of dogwood than I use. Oglala Bowyer, I am guessing you are using red osier.
Oglala cutting shafts whenever they could. I agree with that. Back in the old days, I think they probably cut and bundled shafts when they were in a good area for collecting, and then worked the shafts down as they moved from place to place. There are numerous of descriptions of cutting and bundling the shafts, and hanging them up in the lodge until they were ready to be worked. Keep in mind, these people had to always camp near water, and this is the likely place to find good shaft material.
Bear tail, your mention of collecting arrows after a hunt or a battle is correct. Good arrows were extremely valuable. The reason for cresting the shafts was for identification of your arrows. After a battle, the victors collected arrows and returned the ones that belonged to their own people. The ones that were collected from the slain or routed enemy were kept by the one who found them. In a hunt, the cresting marked your kill as well as assuring you would get your misses back. You didn't take the arrows from a member of your own group; that was theft. Since everyone marked their arrows, everyone would immediately know you had stolen from your own people. This didn't go over very well in the old days, so would not have occurred too often. Unlike today, you could get more than a mere slap on the wrist for this type of indiscretion. On the other hand, taking arrows from someone that was not in your tribe was considered a worthy thing. There was a distinct difference between taking things from your own people; stealing, and taking from anyone else; capturing.
Curtis Carter